3mm filament Breech

The Breech is the iconic part of the Nimble.

It makes changing filament a snap and allows the filament path to be fully visible when removed. It also is a very small piece of plastic and more than any other part of the Nimble it is subject to wear and tear.
This is the 3 mm version.
It needs a slightly different Groove mount adapter, so it is included.

 

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